User Manual
DN9848E
4 Input, 8 Output Digital System Controller with Comprehensive Loudspeaker
Management and Matrix Mixer
V 1.0
2DN9848E User Manual
Thank You For Using This Klark Teknik Product
Our engineers have designed this product with uncompromising dedication to
providing the superb audio performance, ease of use and rugged reliability that
meets the demands of live sound engineering.
Please take time to complete and return the Klark Teknik three-year warranty
registration card and, to obtain maximum performance with minimum eort,
refer to this operator’s manual. Please ensure that you read both the Important
Safety Instructions and Attention! pages.
Finally, enjoy your new DN9848E!
Table of Contents
Thank You For Using This Klark Teknik Product .......... 2
Important Safety Instructions ...................................... 3
Legal Disclaimer ............................................................. 3
Limited warranty ............................................................ 3
DN9848E Key Features .................................................. 4
1. Introducing The DN9848E ................................................. 4
Controls, Connectors, Indicators .................................. 5
2. Front Panel .............................................................................. 5
3. Rear Panel ................................................................................ 6
DN9848E Menu System ................................................. 7
4. Programming Settings ........................................................ 7
4.1 The DN9848E Programming Panel ............................ 7
4.2 Navigating the DN9848E Menus ................................ 7
DN9848E Menu Map ...................................................... 8
Input Channels ............................................................... 9
5. Input Channels ....................................................................... 9
5.1 Brief Technical Overview ............................................... 9
5.2 Setting Input Parameters .............................................. 9
5.3 Monitoring the Input Signal ...................................... 10
Output Channels .......................................................... 11
6. Output Channels ................................................................. 11
6.1 Brief Technical Overview ............................................. 11
6.2 Setting Output Parameters ........................................ 12
6.3 Monitoring the Output Signal .................................. 15
6.4 Output Gain and Mute - Front Panel Control ...... 15
6.5 Channel Copying ........................................................... 16
Security and Other Set Up Options ............................ 17
7. DN9848E Set Up Options ................................................. 17
7.1 General ............................................................................... 17
7.2 Remote Comms Channel/Gang Mode (Page 1)... 17
7.3 Gang Mode Setup (Page 2) ......................................... 18
7.4 Security Settings (Pages 3 and 4) ............................. 19
7.5 Analogue/Digital Input Select (Page 5)..................20
7.6 LCD and LED Lighting (Page 6) ..................................20
7.7 Naming (Pages 7 and 8) ...............................................20
7.8 Backup System (Page 9) ............................................... 20
7.9 Delay Options (Page 10) ............................................... 21
7.10 Power Up Options (Page 11) ..................................... 21
7.11 Ethernet Settings (Pages 12 and 13) ...................... 21
Using the DN9848E Memories .................................... 22
8. Storing and Recalling Settings ....................................... 22
Remote Control Setup .................................................23
9. DN9848E Remote Control Setup ................................... 23
9.1 Overview ...........................................................................23
9.2 HELIX DN9848E unit interconnections ..................23
9.3 Ethernet Connection .................................................... 23
9.4 Serial Connection (Option) ......................................... 24
Application Notes.........................................................25
10. Application Notes ............................................................. 25
10.1 The Advantage of
DN9848E Look-Ahead Limiters ................................. 25
10.2 Phase-adjustment with the DN9848E ..................26
Technical Specication ................................................28
11. Technical Specication ....................................................28
Service Information .....................................................30
12. Service Information ..........................................................30
12.1 Batter y ..............................................................................30
3DN9848E User Manual
Important Safety
Instructions
LEGAL DISCLAIMER
LIMITED WARRANTY
Terminals marked with this symbol carry
electrical current of sucient magnitude
to constitute risk of electric shock.
Use only high-quality professional speaker cables with
¼" TS or twist-locking plugs pre-installed. Allother
installation or modication should be performed only
by qualiedpersonnel.
This symbol, wherever it appears,
alertsyou to the presence of uninsulated
dangerous voltage inside the
enclosure-voltage that may be sucient to constitute a
risk ofshock.
This symbol, wherever it appears,
alertsyou to important operating and
maintenance instructions in the
accompanying literature. Please read the manual.
Caution
To reduce the risk of electric shock, donot
remove the top cover (or the rear section).
No user serviceable parts inside. Refer servicing to
qualied personnel.
Caution
To reduce the risk of re or electric shock,
do not expose this appliance to rain and
moisture. The apparatus shall not be exposed to dripping
or splashing liquids and no objects lled with liquids,
suchas vases, shall be placed on the apparatus.
Caution
These service instructions are for use
by qualied service personnel only.
Toreduce the risk of electric shock do not perform any
servicing other than that contained in the operation
instructions. Repairs have to be performed by qualied
servicepersonnel.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as
radiators, heat registers, stoves, or other apparatus
(including ampliers) that produce heat.
9. Do not defeat the safety purpose of the polarized
or grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding-type plug
has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. Ifthe
provided plug does not t into your outlet, consult an
electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.
11. Use only attachments/accessories specied by
themanufacturer.
12. Use only with the
cart, stand, tripod, bracket,
or table specied by the
manufacturer, orsold with
the apparatus. When a cart
is used, use caution when
moving the cart/apparatus
combination to avoid
injury from tip-over.
13. Unplug this apparatus during lightning storms or
when unused for long periods of time.
14. Refer all servicing to qualied service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power supply cord or plug
is damaged, liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been exposed
to rain or moisture, does not operate normally, or has
beendropped.
15. The apparatus shall be connected to a MAINS socket
outlet with a protective earthing connection.
16. Where the MAINS plug or an appliance coupler is
used as the disconnect device, the disconnect device shall
remain readily operable.
17. Correct disposal of this
product: This symbol indicates that
this product must not be disposed
of with household waste,
according to the WEEE Directive
(2012/19/EU) and your national
law. This product should be taken
to a collection center licensed for
the recycling of waste electrical and electronic equipment
(EEE). The mishandling of this type of waste could have a
possible negative impact on the environment and human
health due to potentially hazardous substances that are
generally associated with EEE. At the same time, your
cooperation in the correct disposal of this product will
contribute to the ecient use of natural resources.
For more information about where you can take your
waste equipment for recycling, please contact your local
city oce, or your household waste collection service.
18. Do not install in a conned space, such as a book
case or similar unit.
19. Do not place naked ame sources, such as lighted
candles, on the apparatus.
20. Please keep the environmental aspects of battery
disposal in mind. Batteries must be disposed-of at a
battery collection point.
21.
This apparatus may be used in tropical and moderate
climates up to 45°C.
Music Tribe accepts no liability for any loss which may
be suered by any person who relies either wholly or in
part upon any description, photograph, or statement
contained herein. Technical specications, appearances
and other information are subject to change without
notice. All trademarks are the property of their
respective owners. Midas, Klark Teknik, Lab Gruppen,
Lake, Tannoy, Turbosound, TC Electronic, TC Helicon,
Behringer, Bugera, Aston Microphones and Coolaudio
are trademarks or registered trademarks of Music
Tribe Global Brands Ltd. © Music Tribe Global Brands
Ltd. 2024 All rights reserved.
For the applicable warranty terms and conditions
and additional information regarding Music Tribe’s
Limited Warranty, please see complete details online at
community.musictribe.com/support.
4DN9848E User Manual
DN9848E Key Features
1. Introducing The DN9848E
The DN9848E is a highly congurable, digital electronic crossover/loudspeaker
management system controller comprising four balanced AES/EBU digital input
channels and eight balanced analogue output channels. Its unrivalled routing
exibility enables any amount of any input to be routed to any output.
Each input channel features:
• • 12 separately congurable, fully parametric equalisation stages that may be
used for room equalisation
• • A programmable delay of up to 1000ms
• • Gain control
• • Full range compression
Each output channel features:
• • Congurable high and low-pass lters for setting the crossover
characteristics
• • Six stages of fully parametric equalisation that may be used to compensate
for system or enclosure characteristics
• • Delay of up to 300ms on each output, mainly used for system time alignment
• • Gain control and output muting
• • Full range compression and full range limiting
• • Dual all-pass phase correction sections, the rst of which can be any of the
lter or parametric EQ stages and can be adjustable in ve-degree steps
The crossover lter may be chosen from the following types:
• • 12 dB/oct and 24 dB/oct peaking (high-pass lter only)
• • Butterworth (6, 12, 18, 24, 36 and 48 dB/octave)
• • Linkwitz-Riley (12 and 24 dB/octave)
• • Bessel (12, 18, 24, 36 and 48 dB/octave)
Channel programming can be performed directly from the front panel controls
or remotely from a PC using the associated Elgar software application via the
real panel Ethernet comms connectors (or RS-232 PC port on the front panel).
If required, access to critical parameter menus can be password protected, for
example, to avoid unauthorised adjustments in hire installations.
Commonly used settings can be stored for repetitive use in up to 32 lockable
System memories while varying show settings can be stored in up to ve
Usermemories.
In addition, any input or output channel’s parameters may be copied across
channels, and channels may be ganged to link source and destination channels
for ease of operation.
Klark Teknik has a policy of continuous development and may produce
updatestothe DN9848E host code. These can be downloaded to the unit via the
front panel PC Port. To keep up with latest features and functions, please visit
www.klarkteknik.com.
5DN9848E User Manual
(1) Input channels A-D
MENU ACCESS
Buttons A-D
Signal Level
Meters A - D
Press to access and step through the menu
pages for the respective input. The available
pages depend on the current security setting.
The button is lit when active.
9-segment signal meters for monitoring
signal level (compressor headroom and gain
reduction) and clip on the respective channels.
(2) RECALL button – Press to access the Recall menu page from which a User,
System or Backup memory can be selected for recall.
(3) Alphanumeric display – Displays menu pages for viewing/dening
parameter values. Values are adjusted via the DATA ENTRY control knobs.
(4) HOME (SET UP) button – Press to exit current menu page and return to
default Home page. Press and hold for one second to access Set Up menu,
then press to step through Set Up pages.
(5) Output channels 1 - 8
MENU ACCESS
Buttons 1-8
Signal Level
Meters 1 - 8
Output level and
mute control
As for input channels.
11-segment signal meters for monitoring signal
level (compressor headroom and gain reduction
– reads relative to limiter threshold) and clip on
the respective channels.
Potentiometer control for ne-tuning/muting
of output level. Provides relative adjustment
from zero level, which is the level set in the
output menu. Turn control to increase/decrease
level or press to mute. Red ring illuminates
when mute is active.
(6) DATA ENTRY control knobs – Used to set parameter values on menu pages
(see Section 4.1).
(7) STORE button – Press to access the Store menu page for storing User or
System memories.
(8) PC port – 8-pin mini-DIN socket for connecting to an RS-232 serial port on a
PC or other remote control device. (Ethercon connectors are provided on the
rear panel for remote control via Ethernet.)
(9) POWER button – Press to switch the unit on or o.
Controls, Connectors, Indicators
2. Front Panel
(1) (2) (3) (4) (5)
(6) (7) (8) (9)
6DN9848E User Manual
Controls, Connectors, Indicators
3. Rear Panel
(1) IEC fused mains inlet socket – For mains power connection. Accepts
input voltages from 100-240V AC 50/60Hz.
(2) Ethernet – 2-port Ethernet switch for remote control using Cat-5 cabling.
(3) Outputs 1-8 – Electronically balanced XLR audio output plugs
Pinouts: Pin 1 - Screen
Pin 2 - Hot
Pin 3 - Cold (Return)
(4) Inputs A-D – Analogue – electronically balanced XLR audio input sockets
Pinouts: Pin 1 - Screen
Pin 2 - Hot
Pin 3 - Cold (Return)
Digital – inputs A and C support incoming 96kHz AES/
EBUsignals.
◊ ◊ Note that when digital input is selected, inputs B
and D are inactive.
AES/EBU is 110 Ohms. Sample rate converters (SRCs) support
incoming signals at sampling frequencies from 32kHz to
96kHz ±12.5%, while allowing the unit to operate internally
at 48kHz. An SRC bypass facility is available for 48kHz
operation; this is to eliminate the propagation delay through
the SRC.
Pinouts: Pin 1 - Screen
Pin 2 - Data +
Pin 3 - Data -
(1) (2) (3) (4)
7DN9848E User Manual
DN9848E Menu System
4. Programming Settings
4.1 The DN9848E Programming Panel
All the parameters for input and output signal processing and routing are dened via function-specic menu pages that are displayed and edited at the programming
panel shown below. As described in the illustration, each menu page uses a standard layout that relates the displayed parameters to the three DATA ENTRY control
knobs, which are used to adjust the parameter values.
The alphanumeric display,
showing the menu page for programming PEQ1
The adjustable parameters are named on
the top line. Current values are given below
in corresponding order.
DATA ENTRY control knobs adjust the left, centre and
right parameter values at the display, in corresponding
order. If there are only one or two parameters, only the
active controls are lit.
When the menu page requires text entry, ‘<>’ indicates which DATA ENTRY
control knob moves the cursor left and right while “chr” indicates which control
knob changes the alphanumeric character.
When there are sub-menu pages, either the left or right DATA ENTRY control
knob will be allocated to moving forward ( - - >) or back up ( < - -). This will be
indicated here by a control knob icon marked L (Left) or R (Right).
The icon indicates that
turning the left knob
clockwise will access the
sub-menu page.
Left knob moves cursor
Centre knob changes character
Right knob inactive
Cursor
4.2.1 Input and Output Menus
Each of the four input channels (A-D) and eight output channels (1-8) have their
own set of menu pages, accessed and stepped through by pressing the channel’s
blue MENU ACCESS button.
When you make a selection, the MENU ACCESS button illuminates to show that
channel is now active at the programming panel. In addition, all the menu pages
show the channel number (1 to 8) or letter (A to D) in the top left-hand corner.
To program each parameter in turn across all the input/output channels, you can
skip to the same page on another input/output channel by pressing the MENU
ACCESS button on the other channel.
If you want to jump back to the rst page on a dierent channel, press the HOME
button and then the required channel button.
Note If you cannot select any of the channel menu pages from the front panel,
then your unit may be set for remote control or the front panel may be
locked as indicated on the alphanumeric display. Pleaserefer to Sections
7.2 and 7.4 for more details.
4.2.2 Set Up Menu
Global parameters, such as the Comms Channel for remote control set ups,
security options and unit labelling are dened in the Set Up menu. To switch
to the Set Up menu, press and hold the black HOME (SET UP) button located
on the programming panel. Press the button repeatedly to cycle through the
menupages.
4.2.3 Store and Recall
The Store and Recall menu pages are accessed by the corresponding buttons
on the programming panel. To abort and exit the store/recall menu press the
HOMEbutton.
4.2.4 Home Page
The Home page, displayed at the end of the start up routine, indicates the unit
name (set by the User) and the current working memory which was retained
from the previous session. To return to the Home page at any time, press and
release the HOME button. (The HOME button is a dual function button – a short
press returns to the Home page while a long press opens the Set Up menu.) The
HOME button can also be pressed to abort a Store or Recall process.
4.2 Navigating the DN9848E Menus
The DN9848E menu system is divided logically into Input, Output and Set Up
menus, plus two function-specic menus for quick access to the Store and Recall
commands. A menu map is provided at the end of this section for reference
purposes.
8DN9848E User Manual
DN9848E Menu Map
9DN9848E User Manual
Input Channels
5. Input Channels
5.1 Brief Technical Overview
Referring to the illustration below, each input channel of the DN9848E processes the audio signal through delay and gain stages, followed by 12 bands of parametric
equalisation, and a full-band compressor. All key stages are monitored for signal clipping which, if detected, illuminates the top red segment at the top of the input
signal meter; thus, clipping of the signal during processing is not inadvertently missed. In addition, the signal level is monitored at the compressor to provide signal
headroom and gain reduction indications at the meter.
5.2 Setting Input Parameters
5.2.1 The Input Menu
The signal processing for each input channel is programmed independently via
the separate Input menu associated with each channel. The signal processing
parameters are described below in menu order.
• • To access the Input menu pages for a particular channel
1. Press its blue MENU ACCESS button (A – D) to switch to its menu.
2. Press the button repeatedly to step through the pages in turn.
Notethat, after the last page, the next button press will cycle the menu
back to the rst page.
• • To skip across to the same parameter on another input, press its
MENU ACCESS button.
5.2.2 Naming the Input Channel (Page 1)
Each input channel can be allocated a name up to seven characters long, which
will be shown in the rst page of the menu for easy reference. The default names
are “Input A”, “Input B”, etc. Names are retained after power down and are
included in stored settings.
• • To enter a name
1. Turn the left DATA ENTRY control knob clockwise to access the Input
Name sub-menu page.
2. Use the centre control knob to move the cursor right or left, and the
right control knob to select the letter, number or symbol.
3. On completion, turn the left control knob anti-clockwise to go back
to the main page. The new name is now shown to the left of the
menupage.
5.2.3 Gain and Delay (Page 1)
Gain and delay are also set in the rst page of the channel’s menu, providing
easy access for quick adjustment during set up or performance. Note that the
delay can be specied in terms of time or distance, as preferred. The unit of
measurement is changed in the Set Up menu (see Section 7.9).
• • To set the delay
• • Turn the centre DATA ENTRY control knob slowly for step increments,
or sharply to leap to the bottom/top of the range (two or three sharp
turns should cover the whole range). When the delay is set for time the
overall range is 0 to 1.00s, with steps of approximately 20.8μs between
0 to 1ms and steps of 0.02ms between 1ms to 1s. When the delay is set
for metres, the overall range is 0 to 343.53 m in steps of 0.1 m and for
imperial (feet and inches) the overall range is 0’ 0” to 1127’ 0” in steps
of 1”.
• • To adjust the gain
• • Turn the right DATA ENTRY control knob. The range is –40 dB to +12 dB
in steps of 0.1 dB, with an OFF position just ‘below’ –40 dB. Setting the
gain to OFF will mute the input signal.
User dened channel name
Delays can be set in seconds, metres or feet and inches
10 DN9848E User Manual
5.2.4 Parametric Equalisation (Pages 2 to 13)
The DN9848E provides 12 parametric equalisation stages on each input channel,
for equalising the input signal in respect of room/venue characteristics.
Each stage can be used across the full range from 20Hz to 20kHz and is set
independently via its own menu page.
• • To set a PEQ
1. Set a centre frequency (21 steps per octave) and bandwidth (0.08 to
3Oct) for the PEQ section, using the left and centre DATA ENTRY control
knobs, respectively.
2. Turn the right control knob to set an attention/boost level in the range
-18 dB to +6 dB.
PEQ sections that are not needed in the set up should be set to 0 dB attention
/ boost.
5.2.5 Compression (Page 14)
Each input has an independent full-range compressor to improve the dynamics of
the incoming signal levels. The compressors are variable ratio and can be set to a
hard knee characteristic for a sharp gain reduction response at the compression
threshold, or soft knee for a more ‘musical’ response.
• • To set the compressor parameters
1. On the rst compressor menu page, use the centre DATA ENTRY control
knob to select a threshold value in the range –10 dBu to +21 dBu, and
the right control knob to set a ratio from 1:1 to 5:1.
2. Turn the left control knob clockwise to access the rst sub-menu page.
Use the centre control knob to select a hard or soft knee characteristic
and the right control knob to set the bypass state to ‘No’ so that the
compressor is included in the signal path.
3. Turn the left control knob clockwise to access the second sub-menu
page. Use the centre control knob to set the compressor attack time
(range of 40μs – 1ms in 20μs steps or 1ms to 100ms in 1ms steps). Use
the right control knob to set the release time (10ms to 2s in 10ms steps).
• • To switch the compressor out of the circuit
• • Set the bypass state on the second compressor page to ‘Yes’. The other
settings are held for future use.
5.3 Monitoring the Input Signal
Each of the four inputs has a nine-segment signal
meter for monitoring the internal signal clipping and
compressor headroom or gain reduction.
The top CLIP segment (shown illuminated in diagram
left) monitors the internal signal clipping. It operates
independently of the rest of the meter, illuminating
when signal clipping is detected at any stage in the
processing circuits, regardless of whether the input
level is above or below the compressor threshold.
Hence, the audio engineer has full visibility of internal
signal clipping that may result in audio distortion.
The 0 dB to –40 dB signal meter monitors the input level on a relative scale,
where the “0” segment is set at the specied compressor threshold. For example,
if the threshold is set to +9 dBu then the input signal meter “0” segment is set at
9 dBu true value, and a signal of –3 dBu registers as 12 dBu below the threshold
(below left). Thus, when the signal level is below the threshold, the meter
indicates the headroom.
When the signal level reaches the threshold, that is, the red “0” segment
illuminates, the meter ‘ips’ and reads downwards to show the amount of gain
reduction applied to the signal.
12 dBu available headroom
9 dBu gain reduction
Signal level below compressor threshold
Compressor threshold reached
11 DN9848E User Manual
Output Channels
6. Output Channels
6.1 Brief Technical Overview
The output channels are slightly more complex than the input channels in that they are responsible for the signal routing as well as output signal processing. At the
input of each output there is a matrix mixer (see following diagram) that can source each output from a mix of the four input channels (A to D). An output can derive its
source from a single input by setting the gain of the other inputs to o. The amount, or level, of input that can be routed to the output is variable from –40 dB to 0 dB
in 0.1 dB steps, or can be switched o completely.
Processed Inputs
From A
From B
From C
From D
Signal Routing
Select the amount of input
between –40.0dB to 0.0dB in
0.1dB steps, or switch it off
Sourced output for
onward processing
Matrix Mixer
After routing, the resultant signal is passed through the various output processing circuits as shown below. Processing options include delay, inversion,
twoindependent phase adjustment stages (Phase Shift and All Pass), ltering, six stages of parametric equalisation, gain/mute, compression and limiting. All key
stages are monitored for signal clipping which, if detected, illuminates the top red segment at the top of the output signal meter. In addition, the signal is monitored
through the compressor and limiter stages to provide headroom/gain reduction indications at the signal meter.
12 DN9848E User Manual
6.2 Setting Output Parameters
Signal processing for each output channel is programmed independently via
the separate Output menu associated with each channel. The signal processing
parameters are described below in menu order.
• • To access the Output menu pages for a particular channel
• • Press its blue MENU ACCESS button (1 – 8) to switch to its menu.
• • Press the button repeatedly to step through the pages in turn. Note
that, after the last page, the next button press will cycle the menu back
to the rst page.
• • To skip across to the same parameter on another output, press its
MENU ACCESS button.
6.2.1 Naming the Output Channel and Matrix Mixing
(Page 1)
Each output channel can be allocated a name up to eight characters long, which
will be shown in the rst page of the menu for easy reference. The default names
are “Output 1”, “Output 2”, etc. Names are retained after power down and are
included in stored settings.
Each output of the DN9848E can be sourced from a mix of the input channels.
Thelevel of the source inputs can be set to between 0.0 dB and –40.0 dB or
switched o.
• • To enter a name
1. Turn the left DATA ENTRY control knob clockwise to access the
OutputName menu page.
2. Use the centre control knob to move the cursor right or left, and the
right control knob to select the letter, number or symbol.
3. On completion, turn the left control knob anti-clockwise to go back
to the main page. The new name is now shown to the left of the
menupage.
• • To set the source input channel and adjust the level
1. Using the centre DATA ENTRY control knob, select source input channel,
that is, A, B C or D.
2. Turn the right control knob to select the level of the source input,
orswitch level o.
3. On completion, press the next output channel MENU ACCESS button to
go to the next menu page.
6.2.2 Signal Invert, Delay and Output Level (Page 2)
Each output can be phase inverted by 180º (separate to the phase-alignment for
crossover), delayed for system alignment and the level attenuated or boosted.
Delay can be specied in terms of time or distance, as preferred. The unit of
measurement is changed in the Set Up menu (see Section 7.9).
The Level entered here sets the baseline output level, that is, the ‘zero’ value,
for the rotary Output Gain controls. For example, if the Level is set to 6 dB, the 0
represents 6 dB. Turning the rotary Gain Control right/left will increase/decrease
the level in a proportional manner beyond 6 dB (it is not directly additive since
the gain is limited to +12 dB). Hence, the Output Gain controls enable ne-tuning
during a performance, while the baseline output level is retained as a standard
setting for future use.
• • To invert the output signal
• • Turn the left DATA ENTRY control knob clockwise until the Invert eld
reads “Yes”. The default setting is “No” inversion.
• • To set the delay
• • Turn the centre DATA ENTRY control knob slowly for step increments,
orsharply to leap to the bottom/top of the range (one or two sharp
turns should cover the whole range). When the delay is set for time
the overall range is 0 to 300.00 ms, with steps of approximately 5.2μs
between 0 to 1 ms and steps of 0.01 ms between 1ms to 300 ms.
Whenthe delay is set for metres the overall range is 0 to 103.06 m in
steps of 0.1 m and for imperial (feet and inches) the overall range is 0’ 0”
to 338’ 0” in steps of 1”.
• • To set the base level for the front panel Gain control
• • Turn the right DATA ENTRY control knob. The range is –40 dB to +12 dB
in steps of 0.1 dB, with an OFF position just ‘below’ –40 dB. Setting the
gain to OFF will mute the input signal.
User-dened channel name
User-dened output channel source and level
Delays can be set in seconds, metres or feet
Sets the baseline for the rotary
Output Gain control
13 DN9848E User Manual
6.2.3 Phase Adjustment (Pages 3 and 4)
To meet the demands of a wide range of situations, the Klark Teknik DN9848E
provides two all-pass lters with complementary control parameters for
ne-tuning the phase response on each output, for example, for alignment
at crossover. The rst lter is presented as a ‘phase shifter’ for which you can
set a specic phase shift at a reference frequency, for example, the HPF or LPF
(typically the crossover point). The second lter enables a 1st or 2nd order phase
shift to be applied at a chosen frequency. With 2nd order, the phase shift window
can be shaped, that is, you can adjust the steepness of the transition by setting
the Q value.
For detailed information on how these lters modify the signal, please refer to
Section 10 “Application Notes”.
• • To set a precise phase shift at a reference frequency
1. Step to the Phase Angle/Ref page shown right.
2. Turn the centre DATA ENTRY control knob to select a phase angle
between 0º and 180º. Turn the right control knob to set the reference
frequency to HPF, LPF or one of the six PEQs (set in the subsequent
Output menu pages).
• • To apply a 1st order phase adjustment in relation to a chosen
frequency
1. Step to the All-Pass page, shown right.
2. Turn the right DATA ENTRY control knob to enable a 1st (90º)
ordershift.
3. Turn the left control knob to the required frequency.
• • To apply a ‘shaped’ phase transition at a chosen frequency
1. Step to the All-Pass page, shown right.
2. Turn the right DATA ENTRY control knob to enable a 2nd (180º)
ordershift.
3. Turn the centre control knob to select the Q (slope) and the left control
knob to select the frequency.
6.2.4 High Pass and Low Pass Filters (Pages 5 and 6)
The DN9848E provides the following high and low pass lter (HPF and LPF)
options for crossover purposes:
Butterworth: 6, 12, 18, 24, 36 and 48 dB / Octave
Bessel: 12, 18, 24, 36 and 48 dB / Octave
Linkwitz Riley: 12 and 24 dB / Octave
Peaking (HPF only): 12 and 24 dB / Octave 0-6 dB Gain
Bypass: No Filter
• • To add a high/low pass lter to output processing
1. Step to the HPF or LPF page, as required (see right).
2. Use the left DATA ENTRY control knob to specify the cut-o frequency.
3. Use the centre control knob to select the lter type and the right control
knob to set the slope/gain. (The right parameter switches between
slope and gain, dependent on the lter type).
• • To bypass the high/low pass lter processing
1. Step to the HPF or LPF page, as required.
2. Turn the centre DATA ENTRY control knob anti-clockwise to ‘Bypass’.
The last selected values for each type of lter are retained in the
background for easy recall.
6.2.5 Parametric Equalisation (Pages 7 to 12)
The DN9848E provides six parametric equalisation stages on each output
channel, for equalising the output signal in respect of loudspeaker and/or
system characteristics. The rst and last of these PEQ sections can, alternatively,
becongured for lower and upper shelving equalisation. All the PEQ sections can
be used across the full range from 20Hz to 20kHz and are set independently via
their own menu page.
• • To set a PEQ
1. Set a centre frequency (21 steps per octave) and bandwidth (0.08 to
3Oct) for the PEQ section, using the left and centre DATA ENTRY control
knobs, respectively.
Or:
Switch to an LEQ/HEQ setting with a 6 dB or 12 db slope by turning the
centre control knob clockwise beyond 3 Oct (see below). Use the left
control knob to set the LEQ/HEQ frequency.
2. Turn the right control knob to set the amount of attenuation/boost from
-12 dB and +12 dB.
If a PEQ section is not needed in the set up, set its level to 0 dB.
Any PEQ can be used as the reference frequency for
the Phase Shifter (see Section 6.2.4)
14 DN9848E User Manual
6.2.6 Compression (Page 13)
Each output has an independent full range compressor to improve the audio
dynamics and/or reduce louder signal levels to avoid loudspeaker damage.
Thecompressors are variable ratio and can be set to a hard knee characteristic
fora sharp gain reduction response at the compression threshold, or soft knee for
a more ‘musical’ response.
• • To set the compressor parameters
1. On the rst compressor menu page, use the centre DATA ENTRY control
knob to select a threshold value in the range –10 dBu to +21 dBu,
andthe right control knob to set a ratio from 1:1 to 5:1.
2. Turn the left control knob clockwise to access the rst submenu page.
Use the centre control knob to select a hard or soft knee characteristic
and the right control knob to set the bypass state to “No” so that the
compressor is included in the signal path. The relative position of the
compressor threshold to the limiter threshold will be indicated by an
illuminated segment at the meter (provided the compressor threshold is
below the limiter threshold).
3. Turn the left control knob clockwise to access the second sub-menu
page. Use the centre control knob to set the compressor attack time
(range of 40μs – 1ms in 20μs steps or 1ms to 100ms in 1ms steps).
Usethe right control knob to set the release time (10 ms to 2 s in
10mssteps).
Illuminated segment
shows the compressor
position relative to the
limiter threshold
• • To switch the compressor out of the circuit
• • Set the bypass state on the second page to “Yes”. The other settings will
be retained for future use.
6.2.7 Output Limiter (Page 14)
In addition to compression, each DN9848E output has a limiter to protect any
attached equipment being driven into clip and potentially being damaged.
Notably, the DN9848E uses a special ‘look-ahead’ limiter so that it can anticipate
transient overshoots and act ‘immediately’ (see Section 10 “Application Notes”
for further details). The limiter threshold can be adjusted to accommodate the
varying requirements of commercial equipment.
• • To set the limiter parameters
1. Select a threshold value in the range –10 dBu to +21 dBu with the left
DATA ENTRY control knob.
2. Use the centre control knob to set a release time between 1ms
and100ms.
3. Use the right control knob to select a hard or soft knee characteristic for
a sharp or gradual cut-o, respectively.
• • To switch the limiter out of the circuit
• • Turn the left DATA ENTRY control knob fully clockwise until the
threshold value reads ‘OFF’ (a sharp turn will leap to the OFF position).
15 DN9848E User Manual
6.3 Monitoring the Output Signal
Each of the eight outputs has an 11-segment signal meter for monitoring internal signal clipping and output levels that may cause damage to the
loudspeaker equipment.
The top CLIP segment monitors the internal signal clipping. Itoperates independently of the rest of the meter, illuminating if signal clipping is
detected at any stage in the processing circuits regardless of whether the level of the nal processed signal is above or below the compressor and/or
limiter thresholds. Hence, the audio engineer has full visibility of any internal signal clipping that may result in audio distortion.
The 0 dB to – 40 dB signal meter is primarily designed to monitor the output level with respect to excessive levels that may cause damage to
the onward loudspeaker equipment. To do this it uses a dual-purpose scale that refers the signal level to both limiter threshold and compressor
threshold, as illustrated and described overleaf.
(1) The meter uses a downward relative scale where the “0” segment represents
the limiter threshold. For example, if the limiter threshold is set to +5 dB in
the output menu page, then the signal meter “0” segment represents 5dBu
true value, the –3 segment becomes 2 dBu down, -6 becomes -1 dBu down
and so on.
The compressor threshold is also marked, relative to the limiter threshold,
by a single steadily lit segment. For example, when the limiter threshold is
set to 8 dBu, the “0” segment is 8 dBu; if the compressor threshold is –1 dBu,
segment “9” will be illuminated.
Note If the limiter is set to OFF, the meter is scaled relative to21dBu.
(2) While the signal level lies below the compressor threshold, the meter
illuimates upwards from –40, such that the current headroom to both the
compressor and limiter thresholds can be monitored.
(3) When the signal level reaches the compressor threshold level, the meter
‘ips’ and reads downwards to show the amount of gain reduction applied
to the signal.
(4) With further increase, the meter reads in both directions, that is, it
increments upwards to track the signal level as it approaches the limiter
threshold and increments downwards to show the applied gain reduction.
(5) When the limiter kicks in, the meter ips to read downwards from the “0”
segment instead of just from the compressor threshold. It now shows the
summed gain reduction from both compressor and limiter.
6.4 Output Gain and Mute - Front Panel Control
Each output is equipped with a dual-action rotary/push-switch control for
adjusting or muting the output level. Note that zero mark on the control refers
to the baseline output level set in the Output menu (see Section 6.2.3) and hence
the rotary control provides ne-tuning relative to this level.
To increase/decrease the level turn clockwise/anti-clockwise
To mute an output push in and hold until the red ring
illuminates To un-mute an output push in
and hold until the red ring light extinguishes
To mute all outputs push in and hold an unlit output until it and
then all other controls illuminate
To un-mute all outputs push in and hold a muted (illuminated)
output until it and then all other red
ringsextinguish
(1) (2) (3) (4) (5)
16 DN9848E User Manual
6.5 Channel Copying
Parameters from a source channel may be copied to one or more destination
channels using the channel copy function. Note that parameters may only
be copied between channels of a similar type, that is, you cannot copy input
channels to output channels or vice versa.
• • To copy a channel’s parameters
1. Press and hold the blue MENU ACCESS button on the source input
(A - D) or output (1 – 8) channel for more than three seconds. This puts
the unit into copy mode, as indicated on the display, and selects that
channel as the source for the copy.
Note The MENU ACCESS button ashes to indicate that channel is selected as
thesource.
Press the HOME button at any point to exit copy mode and return to the
Home page.
2. Now press the blue MENU ACCESS buttons on the destination channels.
The buttons illuminate as they are selected.
Note If the source channel is an input, you may only select input channels as
destinations. Similarly, if the source channel is an output, only output
channels may be selected as destinations.
3. Press the ashing blue MENU ACCESS button on the source channel
again, and the display updates to request conrmation for the copy.
4. Press the STORE button to conrm the copy, or press HOME to exit the
copy mode without completing the operation.
17 DN9848E User Manual
Security and Other Set Up Options
7. DN9848E Set Up Options
7.1 General
The DN9848E provides various set up options for adapting the operation of the
unit to best suit your operational requirements and preferences, as follows:
• • Comms channel setting for remote control operation (Page 1)
• • Channel Gang setup for linking either input channels or output channels
together (Page 2)
• • Security features such as front panel lock and system memory protect
(Pages3 and 4)
• • Analogue/digital input select (Page 5)
• • Display and LED lighting (Page 6)
• • Unit and memory naming (Pages 7 and 8)
• • Backup of system memories to ash RAM (Page 9)
• • Delay units of measurement (Page 10)
• • Power up settings (Page 11)
• • Ethernet settings for remote control operation (Pages 12 and 13)
These options are programmed in the Set Up menu and are described below in
menu order.
• • To access the Set Up menu pages
• • Press HOME (SET UP) to return to the Home page.
• • Press and hold the HOME (SET UP) button to open the menu.
• • Press the HOME (SET UP) button repeatedly to step through the pages
inturn.
Note that this menu does not ‘cycle’. On completing the set up, the menu returns
to the Home page.
7.2 Remote Comms Channel/Gang Mode (Page 1)
The Comms page lets you select either the communications channel on which
the unit will send/receive data to/from a controlling PC, or the gang mode for
working with ganged input or output channels.
Comms channels 1 to 32 are available enabling a slave network of up to 16
DN9848E units to be remotely controlled from a PC using the Elgar Library
Manager and HELIX DN9848E RCS add-in software. For more information on
DN9848E remote control set ups, see Section 9.
Note that, when using Ethernet communication you will need to set up the unit’s
IP address and Subnet mask before selecting the comms channel, see Section 7.11
for further details.
Also, note that remote comms and gang mode are mutually exclusive as channel
ganging is a feature of stand alone unit operation only and is not compatible with
the grouping facility oered in the Elgar 9848E Remote Control Software add-in.
For more information on channel ganging, see Section 7.3.
• • To select a remote communications channel
1. Referring to diagram opposite, use the left DATA ENTRY control knob to
go to the communications channel on which you wish to control the unit
remotely, for example, scroll through to channel 14.
2. Press HOME to conrm the selection; the display will change to the one
shown below.
The front panel controls, except the HOME (SETUP) button, are locked out to
facilitate remote operation.
The display indicates that the unit is under remote control.
For further details on DN9848E remote control set ups, see Section 9.
• • To switch gang mode on
1. Press and hold the HOME (SET UP) button to re-open the Comms page.
2. Turn the left DATA ENTRY control knob to select the Gang Mode option
shown above.
3. Press HOME to enable channel ganging; the display will change to the
one shown below and any ganging which has already been prepared
will now be active.
For further details on ganging channels, see Section 7.3.
• • To switch remote communications/gang mode o
1. Press and hold the HOME (SET UP) button to re-open the Comms page.
2. Turn the left DATA ENTRY control knob anticlockwise to select Comms
O, as shown opposite.
3. Press HOME to conrm your selection.
18 DN9848E User Manual
7.3 Gang Mode Setup (Page 2)
This option is used to link multiple input channels or output channels together
so that a change on one channel will be made to all channels in the gang.
When a gang is created, the settings from the source channel are copied
to the destination channel(s) so that all ganged channels inherit the same
parameter values. From hereon, any changes to a ganged channel are carried
out on the other channels on an absolute basis, with the exception of input and
outputnames.
Notes A channel may only be part of one gang.
Only channels of a similar type may be ganged, that is, you cannot gang
input channels to output channels or vice versa.
Ganging is a feature of stand alone unit operation only and is not
compatible with the grouping facility oered in the Elgar 9848E Remote
Control Software add-in. Therefore, ganging is only active when the unit
is put into Gang mode, see Section 7.2; channel ganging is disabled if the
unit is set to receive data on a remote comms channel.
• • To select channels for ganging
1. Step through the Set Up menu to the Gang Mode Setup menu page.
2. Press the blue MENU ACCESS button on the input (A - D) or output
(1 – 8) channel that you wish to be the source channel for the gang.
Notes The MENU ACCESS button ashes to indicate that channel is selected as
the source.
Press the HOME button at any point to exit the gang mode and return to
theHome page.
3. Now press the blue MENU ACCESS buttons on the channels you
wish to gang; the buttons ash as they are selected, and press the
STOREbutton.
Note If the source channel is an input, you may only select input
channels as part of the gang. Similarly, if the source channel is an
output, only output channels may be selected.
4. Finally, press the STORE button again to conrm the operation.
Allparameters from the source channel are copied to the destination
channels with the exception of the input and output channel names,
and the channels are prepared for ganging.
To activate channel ganging, you must select the Gang mode as described in
Section 7.2. With the unit switched to gang mode, any changes to a ganged
channel are carried out on the other channels on an absolute basis. Also notice
that when you select the blue MENU ACCESS button of a ganged channel in
normal operation, the MENU ACCESS buttons on the ganged channels illuminate
to show that they are part of the gang.
• • To remove a channel(s) from a gang
This procedure is the same for input channels and output channels. In the
following example, inputs A, C and D are initially ganged.
1. Step through the Set Up menu to the Gang Mode Setup menu page.
2. Press the blue MENU ACCESS button on any of the channels within the
gang, for example, input channel A. The MENU ACCESS buttons ash to
indicate channels in the gang.
3. Press the blue MENU ACCESS button on the channel you wish to remove
from the gang, for example, channel D. The blue MENU ACCESS button
will extinguish to show that it has been deselected and removed from
the gang.
4. Repeat Step 3 for any other channel you wish to remove from the gang.
To completely dissolve the gang, press all ashing MENU ACCESS
buttons to extinguish them.
5. Press the STORE button twice to complete the operation.
19 DN9848E User Manual
7.4 Security Settings (Pages 3 and 4)
7.4.1 Front Panel Lock (Page 3)
This option is used to set a password and lock out all, or nearly all, of the front
panel controls to protect settings from tampering by unauthorised personnel.
Five levels of Panel Lock are possible:
• • Unlocked – All controls available.
• • Lock + Recall – This leaves the Recall button active so that saved memories
can be still be recalled.
• • Lock + Recall + Mute – As above, but also leaves the Mute controls active.
• • Lock + Mutes – Leaves the Mute controls only active.
• • Locked – Imposes a full lockout on the front panel controls.
In all cases, limited Set Up menu options remain available, namely the
CommsChannel, Panel Unlock pages and Power Up pages.
• • To set a Panel Lock
1. Step through the Set Up menu to the Panel Lock menu page.
2. Use the left and centre DATA ENTRY control knobs to set a password of
12 characters, including blank spaces, made up of letters, numbers and/
or symbols.
Important! Note that preliminary and subsequent blank spaces are
recorded as part of the 12-character password; therefore,
ifyou use a short password the characters must be re-entered
in exactly the same position to unlock the panel. To avoid
confusion, either record the blanks as part of the password or
enter the word at the far left of the display.
3. Turn the right control knob clockwise to cycle to the required lock type.
4. Press HOME to apply the Panel Lock.
The Home page now indicates that the unit is ‘Locked’. The lock state is retained
after power down, and will be indicated on the Home page when the unit is
powered up again.
• • To remove the Panel Lock
1. Step through the Set Up menu to the Panel Lock page.
2. Use the left and centre DATA ENTRY control knobs to enter the
password. Note that the letters must be in the same position as when
the password was set.
3. Turn the right control knob clockwise to apply the password.
4. If correct, the display will report ‘UNLOCKED’. Press HOME to exit the
page and return to normal operation.
If you have entered the wrong password, the DN9848E will ag it as incorrect and
return to the Panel Unlock page for a further attempt.
7.4. 2 System Protect (Page 4)
System Protect oers limited operational control, while protecting against
unauthorised users tampering with key parameters that may result in
loudspeaker damage.
• • When System Protect is on
• • The output MENU ACCESS buttons and Output Mute controls are
disabled, but the inputs can still be edited and the level and mutes are
still active.
• • User memory settings can be recalled or stored, but System and Backup
memories are inaccessible.
• • The full Set Up menu is still available.
Note Panel Lockout takes priority over the System Protect state.
• • To switch System Protect on
1. Step through the Set Up menu to the System Protect menu page.
2. Use the left and centre DATA ENTRY control knobs to set a password of
12 characters (including blank spaces) made up of letters, numbers and
a limited number of symbols.
Important! Note that preliminary and subsequent blank spaces are
recorded as part of the 12-character password; therefore, if
you use a short password the characters must be re-entered
in exactly the same position to unlock the panel. To avoid
confusion, either record the blanks as part of the password or
enter the word at the far left of the display.
3. Turn the right control knob (‘on>’) clockwise to accept the password
and switch protection on.
4. Press HOME to apply the System Protect state.
The Home page now indicates the unit is locked with inputs editable. The System
Protect state is retained after power down, as will be shown on the Home page
when the unit is powered up again.
• • To switch System Protect o
1. Step through the Set Up menu to the System Protect page.
2. Use the left and centre DATA ENTRY control knobs to enter the
password. Note that the letters must be in the same position as when
the password was set.
3. Turn the right control knob clockwise to apply the password.
4. If you have entered the wrong password, the DN9848E will ag it as
incorrect and return to the Panel Unlock page for a further attempt.
If accepted, the password cursor stops ashing. When you next access this
menupage, System Protect will be in the default O state.
20 DN9848E User Manual
7.5 Analogue/Digital Input Select (Page 5)
This page selects the input source for input channels A and B, and C and D on a
paired basis due to the sharing of channels for AES/EBU inputs. There are three
options available for each input pair:
• • ‘Analog’ - switches to analogue inputs. Note that this is the default setting.
• • ‘DigSRC’ – switches to the digital AES/EBU input. In this mode, the unit locks
to its internal 48kHz clock reference. Sample rate converters (SRCs) support
incoming signals at sampling frequencies from 32kHz to 96kHz ± 12.5%.
• • ‘DigLock’ – switches to the digital AES/EBU input without sample rate
conversion. In this mode, the sample rate converter (SRC) of the digital input
is bypassed and the clock reference is set to lock to the channel’s incoming
AES/EBU bit stream. This allows the unit to be used in 48kHz systems
without incurring the propagation delay inherent in sample rate conversion.
Note If both input pairs are set to ‘DigLock’, then either pair may be selected as
the clock reference.
Any combination of analogue and digital inputs may be selected. For example,
input channels A and B may be set for analogue sources while input channels C
and D are digital.
• • To select the input source
1. Step through the Set Up menu to the Input Source select page.
2. Use the left DATA ENTRY control knob to select the input source for
channels A and B as shown opposite.
3. Use the centre DATA ENTRY control knob to select the input source for
channels C and D in a similar manner.
Note The ‘Ref’ menu shows the clock reference for the unit, for example,
Internal. If both input pairs are set to ‘DigLock’, then this menu becomes
active; turn the right DATA ENTRY control knob to select input source AB
or CD as the clock reference.
7.6 LCD and LED Lighting (Page 6)
If required, the contrast of the alphanumeric display (LCD) and the brightness of
the front panel LEDs can be adjusted to suit.
• • To adjust the contrast of the LCD
• • Step to the LCD page. Turn the left DATA ENTRY control knob to adjust
the display contrast. The default setting is 5, with a range of 0-10.
• • To adjust the brightness of the front panel LEDs
• • Step to the LCD page. Turn the right DATA ENTRY control knob to adjust
the LED brightness. The default setting is 4, with a range of 0-15.
7.7 Naming (Pages 7 and 8)
To help with system identication, the DN9848E unit and the current working
memory may each be given a name up to 24 characters long.
Both names are shown in the Home page and are retained after power down,
which is particularly useful for system reassembly when changing venues.
• • To enter a name
1. Use the left DATA ENTRY control knob to move the cursor right or left,
and the centre control knob to select the letter, number or symbol.
(Tip: to clear existing characters enter a blank space which can be
foundafter the letter “Z”.)
2. Press the HOME button to apply the new name.
Names can also be allocated to individual input and output channels via
their associated menus (see Sections 5.2.2 and 6.2.2).
All names are stored with User and System memory settings. The Store
function will assume the working memory name as the default memory
name, prompting you to edit it if required, see Section 8 “Storing and
Recalling Settings”.
7.8 Backup System (Page 9)
This menu allows you to backup the 32 System memories, as described in Section
8, into ash RAM. By performing a backup, you can ensure that important System
memories may be recovered in the event of power loss and battery failure.
• • To backup the 32 System memories
1. Step through the Set Up menu to the Backup System page.
2. Turn the left, centre and then right DATA ENTRY control knobs
clockwise to accept the three levels of conrmation.
Or, press the HOME button to exit the operation and return to the
Homepage.
The backup copies System memories (S01 – S32) into Backup locations (B01 –
B32) in one operation. You may recall any of the backup memories (B01 – B32)
using the Recall function as described in Section 8.
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